What is the molecular structure of the hydrogel that causes it to retains the water?

What is the mass of 4 molecules of co2

There is one girl i like and i don't know how to tell her that, i have a feeling she knows but if she doesn't i don't want to make a fool out of myself how is one way to boost my confidence on asking her out

When water dissolves sugar, which process is not involved? o dissociation o hydration o surface area of the solute increases sa